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. Author manuscript; available in PMC: 2016 Oct 17.
Published in final edited form as: J Am Soc Mass Spectrom. 2015 Sep 1;26(12):2141–2151. doi: 10.1007/s13361-015-1235-6

Figure 1.

Figure 1

Peak broadening by insufficient desolvation. (A): pol II 10-mer theoretical mass peak (green trace, peak width due to isotope distribution) and experimental peak (blue, wider peak due to adducts and hydration) in 100 mM ammonium acetate. (B): pol II 10-mer theoretical peak and experimental peak in 100 mM ammonium acetate and 2% DMSO. Peak areas were normalized for both theoretical and experimental peaks.